英文解释： "adjective: tending to betray
adjective: dangerously unstable and unpredictable"
例句： "Even though Jesse James was an outlaw, his killer, Robert Ford, is remembered more for his treacherous actions than for eliminating a criminal and murder.
The bridge built from twine and vine is treacherous to walk across, and so I think I will stay put right here."
英文解释： adjective: characterized by or full of force and vigor; having keenness and forcefulness and penetration in thought, expression, or intellect
例句： Jill presented a rather superficial treatment of sales in Asia, but her trenchant analysis of sales in Europe inspired a number of insights into how to proceed in that market.
英文解释： noun: something, especially an event, that causes difficulty and suffering
例句： As of 2013, nearly 1.5 million Syrians have fled their country hoping to escape the tribulations of a civil war tearing their country to pieces.
英文解释： adjective: repeated too often; overfamiliar through overuse
例句： Many style guides recommend not using idioms in writing because these trite expressions are uninteresting and show a lack of imagination on the part of the writer.
英文解释： noun: defiant aggressiveness
例句： When the boss confronted Aaron about his earlier remarks, Aaron responded with utter truculence, simply throwing a glass of water in the boss' face and walking away.
英文解释： verb: reduce the length of something
例句： The soccer game was truncated when the monsoon rain began to fall.
英文解释： adjective: having a fierce, savage nature
例句： Standing in line for six hours, she became progressively truculent, yelling at DMV employees and elbowing other people waiting in line.
英文解释： noun: a state of chaos, noise and confusion
例句： Riots broke out just in front of our apartment building, and the tumult continued late into the night.
英文解释： noun: depravity; a depraved act
例句： During his reign, Caligula indulged in unspeakable sexual practices, so it not surprising that he will forever be remembered for his turpitude.
英文解释： adjective: (of language) pompous and tedious
例句： The amount of GRE vocabulary he used increased with his years--by the time he was 60, his novels were so turgid that even his diehard fans refused to read them.